CROP SCENE INVESTIGATION – 41: Why did James’ field have a line of troubled soybeans? – Solved

A single row of soybeans in James’ field was damaged by herbicide residue because his precision farming seeding and spraying practices ensured the seed was planted precisely on the stream of herbicide that had spilled out of his sprayer’s leaky pressure gauge the previous year.

Pioneer Hi-Bred agronomist Scott Fife pieced the puzzle together when he noticed an RTK AutoSteer screen monitor in James’ tractor. He then learned that the farmer had been using an RTK AutoSteer system for several years.

CROP SCENE INVESTIGATION – 42: How did those devious dandelions get into a Perth winter wheat field?


In this edition of Crop Scene Investigation, Ontario Ministry of Agriculture, Food and Rural Affairs weed specialist Mike Cowbrough shares his diagnosis of how these devious dandelions (see photo to the right) managed to find a home in a Perth County winter wheat field last summer.

CROP SCENE INVESTIGATION – 40: Getting to the root of Jereme’s failing soybeans – Solved

When Ontario agriculture ministry field crop plant pathologist Albert Tenuta looked closely at the roots of Jereme’s soybeans, he found soybean cyst nematodes (SCN).

These microscopic roundworms feed on the roots of soybeans, retarding root growth, starving the plant of nutrients and disrupting water uptake. Typically, this results in stunted plants with yellow or bronze foliage.

CROP SCENE INVESTIGATION – 41: Why did James’ field have a line of troubled soybeans?


It was an early-June day in Glengarry County when Pioneer Hi-Bred agronomist Scott Fife slowly pulled off the road and got out of his truck to take a closer look. “From the road, it was pretty striking,” says Fife, who has become one of Crop Scene Investigation’s top agronomic sleuths.

What caught Fife’s eye was a single row of discoloured soybeans that travelled right down the middle of an 80-acre field. “The strange thing about it was it was one row and it was dead straight all the way down the field.”

CROP SCENE INVESTIGATION – 39: The mystery of the fallen corn trail


It was supposed to be just another day scouting fields for certified professional crop consultant Mervyn Erb.

On this bright, sunny June afternoon, Erb travelled just east of Exeter to inspect a cornfield for Jack, one of his grower customers. The cornfield had a large population of tufted vetch, and Erb wanted to see whether the herbicide he had prescribed to take out the perennial legume was doing the job.

Partial manure injection – a compromise solution to combat nitrogen loss

Testing shows that partial injection decreases ammonia nitrogen volatilization by one quarter to one third. But too much incorporation damages the alfalfa, so some ammonia loss will happen


Livestock farmers face a dilemma when making the best use of their liquid manure asset to fertilize crops. Expensive nitrogen is the most volatile of the three basic fertilizer elements.  It can also be a major pollutant, either as ammonia vaporized into the air or as nitrate leached into the soil and ending up in drinking water.

Loss of CSA certification causes headaches for grain dryer users

With the Canadian Standards Association’s decision to stop certifying grain dryers, farmers are facing the possibility of a more costly and complicated process to get new or replacement equipment into service


CSA. For years the presence of those three letters, an acronym for the Canadian Standards Association, stamped on grain dryers has meant that installation of the equipment is straightforward. The dryer is bought, installed, hooked up to gas or propane and test-fired by a certified installer.


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